Glass-lined container



Nov. 28, 1944. G. L. WEST 2,364,014

GLASS -LINED CONTAINER Filed June 9, 1943 2 Sheets-Sheet 1 wucm for,

G502 GEL. W55 1' Nov. 28, 1944.

GLASS LINED CONTAINER Filed Jur le 9, 1943 2 Sheets-Sheet 2 jwvmhom 44 43 4 40 4847 GEOIEGI: L. WEST G. 1.. WEST 2,364,014

Patented Nov. 28, 1944 UNITED ATES I PATENT mm w v pp H p2, 3,s4,014 W p p t t TGLASS-LINED CONTAINER.

George L. West, Pittsburgh, Pa. ,l assignor to Pittsburgh Plate Glass Company; Allegheny -Oounty,la.,acorporation of Pennsyl vania application June aisiaseriaino. 4903i g s Claimsl (emot -2) p p @The present sinventionttrelates to containers for.

acids and other corrosive substances, and it has particular 1 relation to containers comprising :inner linings of glass plates rand outer reinforcing shells of wood with an jintermediate honding lay-;

erofan asphalticccomposition. t l l t i 3 lineIII---III ofFig. lpFigs; ,4 and 5 are fragmene One object of the invention is to provideua' container of the :above-indicatedntypein which the formation of frothand foam in theintroduction of thetasphaltic layerlbetween the glassklina ing and the reinforcing shell is substantially ob-t viated. t

Awsecond object of theinvention'isto pro? vide a container construction ofithegabove-india cated type, which is simple, rugged and durable.

These and other objectstwill be: apparent from consideration of the following specification and drawings. l t i t It has been proposed to formtanks or con tainers for acids andother corrosivesubstances by lining wooden boxes'or vats with sheets or plates OfbglESS bonded tothe wood by means of l molten material to foam intthe pouring opera-t tion. Obviously the production of such foam seriously interferes withwoperations because it may run over and thus becomequite messy. .Also,

bubbles may be permanently entrappedlinthe i 1 In the drawin s .1 is t Y w. partially i section \and partially in plan of atank =or con tainer constructed in accordance with the pro: visions of the invention; ,Fig. 2-is an elevational view ofathe construction shown inEig li; Fig.3

is a sectionalview taken substantially upon the tary sectional views ofqmodified details of con structionr i a 1 In the construction shownpan outer shell -or case 5, preferably of wood 311dQf rectangular, circular, or polygonal section, is provided. It includes side walls 6,], 8 and 9, theends of which are appropriately rabbeted together asindicated at It; It also includes a bottom [2 having ex ternal scleatsjgqliij alongytwo opposed edges. The case isreinforced by horizontal metallic rods "l5 and vertical rods l6, which, as indicated in Fig. 3; are provided with nuts i thatflcanbe tighteried intordertto apply {pressure upon the wood.

- These nuts areucountersunk \asindicated at l8 and preferablyuare coveredby bars l9, which,

as shown inzEig. l; constitute corner strips. :They may besecuredmin positionbywmeans of screws or other suitable: fastenings 21; having heads countersunk below the surface-ofnthe bars.

In order to protectwthe wood and also to prevent. leakage of fluids in: the containera. suitable lining is provided; liningincludes inne'r plates 22 preferably oft glass, each of which isof a size to constitute an inner wall, and which may be ground andrpolishedor which if1 preferred may have their naturaljs lrfaces. These plates maybe fairly thick and tempered or heatasphalt layer, thusproducing points of weakness therein. Furthermore, porous asphalt tends to settle or pack, thus leaving the space only ipar-' to such'depth as :tojleave inwardly projecting facehof the wood and themolten asphalt} The latter material may glasssheets. 1 i

For a; better understanding of the invention reference may now be had to the drawings in which like numerals referto like parts throughout. n t i then beupoured between the treated in order to increase the strength thereof. l i

The plates; as shown Fignl; have inwardly beveledyertical edges 23, thatilock the plates from inwardlyw collapsing. The: edges wmay be sealed with thermosetting resin, such as Bakelite. Bottomplatesei l and25 are: alsoprovidecl and are maintained in spaced relation by .means of small pieces 25 of ,glass laiddooselyupon-the bottom. The plates -22 1 ma besuitablyspacecl from :the side wallslli, 8; and 9 by means of spacing screws 2:1;0threaded1intothe side walls portions correspondingwin llengthwtogthe desired spacing of'the plates; ,zslotsiila-for a screwdriver are formed: in the :rthreads of *the screws to m cilitateutheirinsertion; 1 i i Next to the walls of the'wooden glass plates 28, which preferably are relatively thin and may be ordinary window glass or other inexpensive form of flat glass that can contact 2,364,014 i do container are ly nicked to afford room: for the screws.

2 with the wood. The spacing screws 21 may pass through holes in these plates; or they may pass through the joints between contiguous plates. In the latter case the edges or corners may be slightheads of the screws anchor the packing of asphalt' and they may act as rosettes to clamp the plates 28. The joints and/or openings in the plates 28 may, if desired, be sealed with thermosetting resin.

The,

It is to be observed that a substantial space f tively fluid and can be run into the space between the inner and outer sheets of glass by a mere pouring operation. The asphalt, even at these elevated temperatures, it is found, can be poured in place between the glasses Without any tendency to foam.

The upper edges of; the assembly are secured and protected by means of coping strips 29,-which are fastened in place by means of screws 3|, threaded into the upper edges of the wall. These coping strips have grooves 32 formed contiguous to their inner edges and are adapted to receive the upper edges of the inner glass sheets 22.' If desired, these edge portions may be beveled by grinding.

The construction as shown is comparatively simple and rugged. The glass and asphalt layers provide complete and adequate coverag .for the wooden surfaces. The wood reinforces the glass and the asphalt provides a combined bonding and packing that effectively transmits stresses upon the glass to the wood. it The outer sheet or covering of glass 28 effectively obviates the froth- In Fig. 4 is shown a suitable observation win dow for use in the tank wall. In this construction an opening is formed in shell 5, the-edges of the opening being reinforced and defined by a frame '40 of wood held in place-by screws 4|. In order to prevent possibility of-leakage of asphalt, a ring 42 of a thermosetting resin may be filled between plates 22 and 28. I

As a safety feature to prevent escape of the contents of the tank in event of breakage of glass 22 a second plate or a series of plates 43 of tempered'or annealed glass is provided and its margins sealed against ring 40. It ma be locked in place by ring or frame 44, held by screws 46 so that the glass can be removed for cleaning or repair. The opening in the wall is reinforced by frame 41, which also provides securing means for frame. Frame is held in place by screws 48, threaded into shell 5.

In Fig. 5 is disclosed a modified construction for holding plate 22 in spaced relation with respect to plate 28. It involves a round pointed set screw 50, threaded through a square hole 52 in shell 5. The screw extends through opening 53 in plate 28 so that its point bears on the-back of plate 22. These screws maybe accurately positioned after plate 22 is inserted. The rear ends thereof may be covered and protected by plugs 54 of wood or the like.

The form of the invention herein shown and described is to be considered merely as exemplary. It will be apparent to those skilled in the art that numerous modifications may be made therein without departure from the spirit of the invention or. the scope of the-appended claims.-

, outer lining of glass plates within :the shell, an;

inner lining of glass plates having wallsslightly spaced from the outer lining, the space between the two linings being completely filled with non-.

porous asphalt, adhering tothe glass surfaces the edges of the upper edges, of the container edges of theouter shell and covering theedges of glass linings and 3. A construction as defined in claim which the plates of the inner. and outer linings are spaced by means of screws threaded into the wooden shell and having heads projecting to engage the inner linings. u f;

4. A construction .as defined in:.claim-' 2:in which the plates of the inner and outerilinings arespaced by means of screws threaded into the wooden shell and'having heads projecting to .engage the inner linings, said screws having-head portions anchoringthe asphalt and clamping the plates of the outer lining. I

5. A container as defined in claim of which covers a wall of the containenthe vertical edges of the plates being beveled inwardly sothat they are locked from collapsing inwardly.

6..A container for corrosive substancesc'oma prising an outer cas'e of wood'and two linings of glass, one lining being in contact with. the

wood and .the'other being substantially spaced therefrom and a filling of an impermeable core rosion resistant plastic between the two; '1. I

7. A construction as defined in claim 6'in which the second lining is of tempered glass; 1 f a a 8. Alcontainer for corrosive substancesc'om prisingan outer case of wood and Ian inner'and an outer lining of glass plates, one lining being in contact with the wood and the otherubei'ng substantially spaced from'the firstlining, a filling of impregnable corrosion resistin plasticbetween thetwo, and spacing screws maintaining the spaced relationship oftheinner andioute'r linings, said screws being threaded thr0ugh2 -a 2 in which i -.the container is rectangular in horizontal section, and the inner lining comprises plates, each.

GEORGE L.: "WEs'r 7 

